Exodus 10:2

10:2 and that you may tell in the hearing of your son, and of your son's son, what things I have done to Egypt, and my signs which I have done among them; that you may know that I am Yahweh."
-World English Bible

Other Translation

10:2 And that thou mayest tell in the ears of thy son, and of thy son's son, what things I have wrought in Egypt, and my signs which I have done among them; that ye may know how that I [am] the LORD.
-King James Version